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CHAPTER 13 AUTOMATIC UPDATE OF PC CLOCK:
Note: The use of GPS time is optional. The preferred time
source is the Tardis95 program which updates the PC clock via
the LAN to a Network Time Server.
Network Time Server
The Tardis95 program starts automatically when the computer
boots. A small blue icon shall be visible right besides the PC
clock in the down-right corner of the monitor. To change the
settings, just click on the icon. The settings should be as
shown in the figure. The IP address to NPF time server is
currently 193.156.10.100 as shown in the figure. The program
communicates via the computers network connection.
THE GARMIN GPS 12XL RECEIVER (OPTIONAL)
The setup of the Garmin GPS 12XL receiver is shown in Figure 2.
The Garmin GPS 12XL receiver must be mounted with open view to
at least ≈ ½ of the sky. Then it will «see» several of the GPS
satellites in polar orbit.
The mounting bracket can be unscrewed and remounted in several
positions. The data cable from the Garmin GPS 12XL is connected
to the connector box. This connector box is having an input
connector for 12VC (from the AC to DC converter). It also has a
RS-232 connection. This is connected to the PC COM2: port. Only
the TxD, RxD and GND connector is used in the PC.